Commit d9dfc4ea authored by Wachowski, Karol's avatar Wachowski, Karol Committed by Jacek Lawrynowicz
Browse files

accel/ivpu: Add wp0_during_power_up WA 



Send workpoint 0 request during power up on 37xx.
This is needed in rare case where WP0 was not sent
during power down due to device hang.

Signed-off-by: default avatarWachowski, Karol <karol.wachowski@intel.com>
Reviewed-by: default avatarJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: default avatarJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611120433.1012423-2-jacek.lawrynowicz@linux.intel.com
parent 93244108

drivers/accel/ivpu/ivpu_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -102,6 +102,7 @@ struct ivpu_wa_table { 
	bool interrupt_clear_with_0;

	bool disable_clock_relinquish;

	bool disable_d0i3_msg;

	bool wp0_during_power_up;

};



struct ivpu_hw_info;

drivers/accel/ivpu/ivpu_hw.c

+11 −0
Original line number Diff line number Diff line
@@ -64,10 +64,14 @@ static void wa_init(struct ivpu_device *vdev) 
	if (ivpu_device_id(vdev) == PCI_DEVICE_ID_LNL)

		vdev->wa.disable_clock_relinquish = true;



	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX)

		vdev->wa.wp0_during_power_up = true;



	IVPU_PRINT_WA(punit_disabled);

	IVPU_PRINT_WA(clear_runtime_mem);

	IVPU_PRINT_WA(interrupt_clear_with_0);

	IVPU_PRINT_WA(disable_clock_relinquish);

	IVPU_PRINT_WA(wp0_during_power_up);

}



static void timeouts_init(struct ivpu_device *vdev)
@@ -125,6 +129,13 @@ int ivpu_hw_power_up(struct ivpu_device *vdev) 
{

	int ret;



	if (IVPU_WA(wp0_during_power_up)) {

		/* WP requests may fail when powering down, so issue WP 0 here */

		ret = wp_disable(vdev);

		if (ret)

			ivpu_warn(vdev, "Failed to disable workpoint: %d\n", ret);

	}



	ret = ivpu_hw_btrs_d0i3_disable(vdev);

	if (ret)

		ivpu_warn(vdev, "Failed to disable D0I3: %d\n", ret);